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DSST Physical Sciences Principles

Subjects : dsst, science

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. A temperature of -10 degrees celsius is equivalent to...
263 degrees kelvin
Remains unchanged
12 miles per hour
Mechanical - chemical - and radiant energy

2. Electrical energy can be converted to...
Second principle of Centripetal force
Mechanical - chemical - and radiant energy
Total internal energy of an object
Increasing speed and constant acceleration

3. Circular motion requires centripetal force
Waves and particles
First principle of Centripetal force
Increasing speed and constant acceleration
263 degrees kelvin

4. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Momentum
Increases the energy
Newtons third principle of Universal Gravitation
Universal

5. cogeneration uses...
5 m/s
Decreased
Waste heat for secondary uses
Momentum

6. Entropy refers to...
Difference in the sped of light in water vs. air
Increasing speed and constant acceleration
Disorder
Increases the energy

7. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Total internal energy of an object
5 m/s
Waves and particles
Heat of fusion

8. The larger the centripetal force - the faster an object travels in a circle of a given size
Heat of fusion
5 m/s
Increasing speed and constant acceleration
Second principle of Centripetal force

9. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
Decreased
12 miles per hour
Second principle of Centripetal force
Sulfur

10. When you add heat to a substance - its temperature...
Near a maximum
Might stay the same
Newtons first principle of Universal Gravitation
Means less power is transmitted

11. Electromagnetic radiation can be viewed as...
Heat of fusion
Waves and particles
Newtons third principle of Universal Gravitation
Disorder

12. The reason that a spear fisherman cannot see where the fish is actually located is...
Total internal energy of an object
12 miles per hour
Difference in the sped of light in water vs. air
263 degrees kelvin

13. Which is not one of the fundamental forces of nature...
Newtons second principle of Universal Gravitation
Second principle of Centripetal force
Universal
Disorder

14. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Might stay the same
Newtons first principle of Universal Gravitation
Remains unchanged
Mechanical - chemical - and radiant energy

15. From the 50's and to the 70's - the pH of rain in the northeast had..
Newtons third principle of Universal Gravitation
Decreased
Momentum
Difference between the heat supplied and the heat exhausted

16. Increasing the frequency of light
Less on the moon
Increases the energy
Difference in the sped of light in water vs. air
Twice the work

17. Raising an auto in a service station requires work. Raising it twice as high requires...
Means less power is transmitted
Twice the work
Difference between the heat supplied and the heat exhausted
Total internal energy of an object

18. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
Twice the work
5 m/s
Decreased
Halogen radicals interfering in ozone synthesis

19. At a given speed - the centripetal force - the smaller the circle.
Momentum
Third principle of Centripetal force
Newtons first principle of Universal Gravitation
5 m/s

20. If a charging elephant has kinetic energy - it must also have...
Momentum
Waves and particles
Difference in the sped of light in water vs. air
Less on the moon

21. The weight of one kilogram of iron on earth is...
Difference in the sped of light in water vs. air
Increasing speed and constant acceleration
Less on the moon
Twice the work

22. All objects with mass are attracted to another by the gravitational force
Waves and particles
Remains unchanged
Newtons first principle of Universal Gravitation
Twice the work

23. The theoretical production curve of oil indicates oil production is...
Newtons first principle of Universal Gravitation
Near a maximum
Third principle of Centripetal force
Waves and particles

24. Neglecting air resistance - a ball in free fall near the earth's surface will have...
263 degrees kelvin
Halogen radicals interfering in ozone synthesis
Increasing speed and constant acceleration
Near a maximum

25. In burning coal - what contaminant is of major concern as a pollutant...
Third principle of Centripetal force
Difference between the heat supplied and the heat exhausted
Sulfur
Newtons second principle of Universal Gravitation

26. The gravitational force - two masses are directly proportional to the mass of each object
Newtons second principle of Universal Gravitation
Waste heat for secondary uses
Increases the energy
Difference between the heat supplied and the heat exhausted

27. In a generator - the flow of electrons (current) is created by...
Second principle of Centripetal force
Movement
Near a maximum
Momentum

28. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Means less power is transmitted
Newtons second principle of Universal Gravitation
Third principle of Centripetal force
Total internal energy of an object

29. The work that a heat engine is able to accomplish is ideally equivalent to the
Difference between the heat supplied and the heat exhausted
263 degrees kelvin
Momentum
Newtons third principle of Universal Gravitation

30. Heat is the...
Total internal energy of an object
Mechanical - chemical - and radiant energy
263 degrees kelvin
Increasing speed and constant acceleration

31. The ozone hole results from...
Remains unchanged
Halogen radicals interfering in ozone synthesis
Near a maximum
Sulfur